Home / 21,383,834.80-32,084,968.20-12,416,052.40

Finding the Fourth Proportional to 21,383,834.80, 32,084,968.20 and 12,416,052.40

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Solution

The fourth proportional to 21,383,834.80, 32,084,968.20 and 12,416,052.40 is: 18,629,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383,834.80 : 32,084,968.20 = 12,416,052.40 : x
  2. Step 2: Convert to fraction form
    21,383,834.80/32,084,968.20 = 12,416,052.40/x
  3. Step 3: Cross multiply
    21,383,834.80x = 32,084,968.20 × 12,416,052.40
  4. Step 4: Simplify right side
    21,383,834.80x = 398,368,646,423,533.69
  5. Step 5: Solve for x
    x = 398,368,646,423,533.69/21,383,834.80
  6. Step 6: Final answer
    x = 18,629,429.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.